Richard A. Weinberg is an American developmental psychologist. Weinberg was born in Chicago, Illinois in 1943. He received his undergraduate education at the University of Wisconsin–Madison. For most of his career, Weinberg has taught at the University of Minnesota after earning his Ph.D there in 1968. He is known for his Minnesota Transracial Adoption Study with Sandra Scarr. This study concluded that "rather than the home environment having a cumulative impact across development, its influence wanes from early childhood to adolescence." Weinberg has served on the board of directors of the American Psychological Association and the American Psychological Society. With Richard M. Lerner and Celia Fisher, he was a founding editor of Applied Developmental Science.

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